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PT678337E - PULVERIZATION DEVICE FOR A LIQUID OPHTHALMIC FORMULA - Google Patents

PULVERIZATION DEVICE FOR A LIQUID OPHTHALMIC FORMULA

Info

Publication number
PT678337E
PT678337E PT95104175T PT95104175T PT678337E PT 678337 E PT678337 E PT 678337E PT 95104175 T PT95104175 T PT 95104175T PT 95104175 T PT95104175 T PT 95104175T PT 678337 E PT678337 E PT 678337E
Authority
PT
Portugal
Prior art keywords
eye
stream
formulation
electric charge
liquid ophthalmic
Prior art date
Application number
PT95104175T
Other languages
Portuguese (pt)
Inventor
Raymond Charles Rowe
Original Assignee
Astrazeneca Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Astrazeneca Ab filed Critical Astrazeneca Ab
Publication of PT678337E publication Critical patent/PT678337E/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations
    • B05B17/0607—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations generated by electrical means, e.g. piezoelectric transducers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns

Landscapes

  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Bipolar Transistors (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

A method of administering to the eye a liquid ophthalmic formulation, comprising an ophthalmologically acceptable liquid and optionally containing an ophthalmologically-active substance, characterized in that the formulation has a viscosity in the range 10<-><3> to 1.0Pa.s and a resistivity lower than 10<4>ohm.cm, and that a jet of the formulation is ejected towards the eye, from a spray nozzle (12) situated adjacent to a piezoelectric or electromagnetic transducer (7), to form a stream of uniformly-sized, equally spaced, uncharged droplets, the stream of uncharged droplets is subsequently directed past a charging electrode (13) to induce an electric charge on each droplet in the stream, and the charged droplets discharge their electric charge by earthing on contact with the eye; and spraying apparatus suitable for use in that method. <IMAGE>
PT95104175T 1994-03-25 1995-03-22 PULVERIZATION DEVICE FOR A LIQUID OPHTHALMIC FORMULA PT678337E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9405952A GB9405952D0 (en) 1994-03-25 1994-03-25 Aqueous ophthalmic sprays

Publications (1)

Publication Number Publication Date
PT678337E true PT678337E (en) 2002-06-28

Family

ID=10752506

Family Applications (1)

Application Number Title Priority Date Filing Date
PT95104175T PT678337E (en) 1994-03-25 1995-03-22 PULVERIZATION DEVICE FOR A LIQUID OPHTHALMIC FORMULA

Country Status (13)

Country Link
US (1) US5630793A (en)
EP (1) EP0678337B1 (en)
JP (2) JP3712438B2 (en)
AT (1) ATE212253T1 (en)
AU (1) AU693871B2 (en)
DE (1) DE69525095T2 (en)
DK (1) DK0678337T3 (en)
ES (1) ES2171172T3 (en)
GB (1) GB9405952D0 (en)
NZ (1) NZ282445A (en)
PT (1) PT678337E (en)
WO (1) WO1995026236A1 (en)
ZA (1) ZA951970B (en)

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Also Published As

Publication number Publication date
DK0678337T3 (en) 2002-04-15
JP3712438B2 (en) 2005-11-02
ATE212253T1 (en) 2002-02-15
EP0678337B1 (en) 2002-01-23
AU1955295A (en) 1995-10-17
JP2005254026A (en) 2005-09-22
DE69525095D1 (en) 2002-03-14
ZA951970B (en) 1995-09-26
NZ282445A (en) 1998-04-27
JPH07265425A (en) 1995-10-17
AU693871B2 (en) 1998-07-09
US5630793A (en) 1997-05-20
JP3825039B2 (en) 2006-09-20
EP0678337A1 (en) 1995-10-25
GB9405952D0 (en) 1994-05-11
ES2171172T3 (en) 2002-09-01
DE69525095T2 (en) 2002-12-19
WO1995026236A1 (en) 1995-10-05

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